It is not so much that fossil 1._ and other non- 2._ energy sources are causing great concern because they will not be around for much longer and have been identified as chief polluters. It is rather the 3._ price of 4._ oil and the effects it has on our budgets that explain it better. This proves that money is the best 5._ of change; the rise in oil prices has impact on airline and transportation companies in general as well as 6._ companies. This is in turn raising prices of all 7._ goods and not only utility 8._. And this has a direct impact on our lives now.
For some time biomass was seen as a sort of 9._ for the energy problem. The energy generated in that way does not cause pollution and is obtained from otherwise useless waste and specially grown non-food crops. Unfortunately, it turned out there is not enough waste so farmers, who did not want to miss the 10._ opportunity, started growing corn and sugar beet at the expense of food crops. This is nowadays blamed for the increase in food prices and various officials who see the bigger picture are now urging governments to stop promoting this practice.
A lot of money has gone into researching hydrogen as a substitute for 11._. However, hydrogen is presently most economically produced using fossil fuels. Together with technological challenges involved in its storing, hydrogen economy still has a long way to go. Some countries are, however, making the shift. Renewable energy in Iceland supplies over 70% of its energy needs. Britain could make use of wind power, Norway hydro and central Europe biomass and geo-thermal. There is also 12._ and wave power which is already widely used in Scotland. Solar power shows great promise as well.
